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參數(shù)資料
| 型號： | HT16220 |
| 廠商： | Holtek Semiconductor Inc. |
| 英文描述： | RAM Mapping 32 x 8 LCD Controller for I/O μC(存儲器映射、用于I/O接口微機的32 x 8模式LCD控制器) |
| 中文描述： | 內(nèi)存映射32 × 8 LCD控制器的I / O微控制（存儲器映射，用于的I / O接口微機的32 × 8模式液晶顯示控制器） |
| 文件頁數(shù)： | 9/17頁 |
| 文件大小： | 148K |
| 代理商： | HT16220 |
HT16220
9
January 10, 2001
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Timer and WDT configurations
If an external clock is selected as the source of
system frequency, the SYS DIS command turns
out invalid and the power down mode fails to be
carried out until the external clock source is re-
moved.
Buzzer tone output
A simple tone generator is implemented in the
HT16220. The tone generator can output a pair
of differential driving signals on the BZ and BZ
which are used to generate a single tone.
Command format
The HT16220 can be configured by the software
setting. There are two mode commands to con-
figure the HT16220 resource and to transfer
the LCD display data.
The following are the data mode ID and the
command mode ID:
Operation
Mode
ID
READ
Data
1 1 0
WRITE
Data
1 0 1
READ-MODIFY-WRITE
Data
1 0 1
COMMAND
Command 1 0 0
If successive commands have been issued, the
command mode ID can be omitted. While the
system is operating in the non-successive com-
mand or the non-successive address data mode,
the CS pin should be set to 1 and the previous
operation mode will be reset also. The CS pin
returns to 0 , a new operation mode ID should
be issued first.
Name
Command Code
Function
TONE OFF
0000-1000-X
Turn-off tone output
TONE 4K
010X-XXXX-X
Turn-on tone output, tone frequency is 4kHz
TONE 2K
0110-XXXX-X
Turn-on tone output, tone frequency is 2kHz
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| HT16220(100QFP) | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Controller Miscellaneous - Datasheet Reference |
| HT16220_04 | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:RAM Mapping 328 LCD Controller for I/O MCU |
| HT16220_09 | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:RAM Mapping 328 LCD Controller for I/O MCU |
| HT1623 | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:RAM Mapping 48x8 LCD Controller for I/O MCU |
| HT1623(100QFP) | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Controller Miscellaneous - Datasheet Reference |
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